DH Instruments GFS2102, Руководство по эксплуатации и обслуживанию, Страница: 86 / 206

GFS2102™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 70
Dew Point Temperature
The current dew point temperature calculated from the Enclosure Temperature,
Enclosure Pressure, and Relative Humidity.
Higher flows decrease the temperature of the reference gas cylinder. As the
temperature approaches the dew point, moisture will build up on the reference gas
cylinder. The moisture increases the mass of the balance therefore decreasing the
calculated flow. Use
[Setup][Configuration][limits] to define a dew point approach
limit to avoid taking data when moisture is on the reference gas cylinder.
Status Status information specific to GFS operation displays in this field. This information is
not always the same as the information displayed on the status bar.
5.1.5.4 BALANCE OUTPUT RUN SCREEN
The Balance Output run screen is a display specific to balance related information.
Access this display by selecting the drop down menu option next to the [GFS]
display toolbar button. Use this display to troubleshoot the balance or to perform
maintenance operations. Use the tools on this display when running Manual or
Diagnostic Tests only. Use the GFS AMH manipulation options on the
GFS run
screen to ensure that the AMH is in a state such that the balance operation is valid.
It is the users’ responsibility to set the proper GFS AMH state prior to using
the manual balance options. Leaving the AMH in the wrong state can over-range the
balance or yield an erroneous calibration.
When the [Balance Calibration] option is used, the
[Setup][Configuration][Time/Mass]<Mass Span Multiplier> must be set back to 1.
Failure to reset this correction back to one will yield erroneous results.
Figure 42. Balance Output Run Screen
Table 19. Balance Output Run Screen Fields
LABEL DESCRIPTION
Balance Tare
Tare the balance. This option is equivalent to pressing the tare button on a balance
terminal (not provided). No AMH state manipulation operations are imposed before taring.
This feature is provided for balance specific operation only.
For normal system operation use the [AutoZero] button on the GFS run screen.
Balance Zero
Zero the balance. This option is equivalent to pressing the zero button on a balance
terminal (not provided). No AMH state manipulation operations are imposed before taring.
This feature is provided for balance specific operation only.
For normal system operation use the [Balance Zero] button on the GFS run screen.